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(No Model.) 5 Sheets-Sheet 1.

. E. NORTON & J. G. HODGSON.

- DOUBLE SEAMING MACHINE. No. 300,002. Patented June'lO, 1884.

5 Sheets-Sheet 2.

(No Model.)

B. NORTON & G. HODGSON.

DOUBLE SEAMING MACHINE.

No. 300,002. Patented June 10, 1884.

(No Model.) 0 5 Sheets-Sheet 3.

E. NORTON & J. G. HODGSON.

DOUBLE SEAMING MACHINE.

No. 300,002. Patented June 10, 1884.

if? llllHllllll r 6 llllll 4 (No Model.) 5 Sheets-Sheet 4. E. NORTON 8aJ. G. HODGSON.

DOUBLE SEAMING MACHINE.

Patented June 10, 1884.

N4 PETERS. vhuwumo n her. Washington. D. C

(No Model.) 5 Sheets-Sheet 5.

E. NORTON & J. G. HODGSON.

DOUBLE SEAMING MACHINE. No. 300,002. Patented June 10, 1884.

STATES EDYVIN NORTON AND JOHN GEORGE H ODGSON, OF CHICAGO, ILL, ASSIGN-ORS TO SAID NORTON AND OLIVER \V. NORTON, OF SAME PLACE.

'DOUBLE-SEAMING MACHINE.

SPECIFICATION forming part of Letters Patent No. 300,002, dated June 10,1884.

Application filed February 14, 1884. (No model.) I

T all whom it mag concern Be it known that we, EDWIN NORTON and JOHN G.HODGSON, citizens of the United States, residing in Chicago, in thecounty of Cook and State of Illinois, have invented a new and usefulImprovement in Double-Seaming Machines, of which thefollowing isaspecification.

The present invention relates to machines for seaming heads upon cans;and the object of the invention is to provide a machine forautomatically doubleseaming the heads to flangeless sheet-metal cansrapidly, and so as to form perfect double seams; and to this end theinvention consists in atool and its actuating mechanism, by means ofwhich the edge or horizontal flange of the countersunk head is firstbent down or folded over the vertical wall of the can-body, and thensuch flange, together with the wall of the can-body embraced thereby,turned down or folded upon itself.

It also consists, in connection with the tool, of mechanism for givingit the requisite movements automatically, and of supporting andrevolving the can, and in a tool or device for pressing the folded seamclosetagainst the vertical wall of the can-body, and mechanism foroperating said tool in connection withthe seamforming tool.

It also consists in the novel constructions and combinations of devicesherein shown and described and claimed.

In the accompanying drawings, which form a part of this specification,and in which similar letters of reference indicatelike parts, Figure 1is a front view of a device or machine embodying the invention. Fig. 2is a side elevation. Fig. 3 is a rear View. Fig. 4 is a sectional viewshowing the driving -shaft and clutch mechanism. Figs. 5'and 6 aredetail views of parts of the clutch mechanism; and

Figs. 7, 8, 9, 10, and 11 are enlarged detail.

views showing the position of the seamingtools at different stages inthe formation of the seam. Figs. 12 and 13 are sectional detail views ofparts hereinafter described.

In the drawings, Arepresents the frame of the machine, and B B therevolving chuck for holding and rotating the can while the seam is beingformed by the seaming-tools. The upper disk, B, of the chuck is securedto ashaft, I), mounted in suitable bearings, b, on the frame of themachine, which shaft is continuously rotated by means of a bevel-gear, bmeshing with a bevel-gear, b 011 the pulley-shaft If. The shaft b isarranged horizontally, and journaled in bearings b on the frame of themachine.

G is the driving-pulley keyed to this shaft. The lower disk, B, of thechuck is secured to a shaft, b,which is journaled so as to reciprocatevertically in a bearing, b, on the bracket A. The bracket A is securedto the frame of the machine by suitable bolts. 0 represents the can, ando the head to be seamed or secured thereto. The head 0 is countersunk inthe usual manner, and has a horizontal part or flange, c, which restsupon the top edge of the can-body. The countersunk 'portion of the headis made to fit snugly within the can-body, and the chuck-disk B fitswithin the recess of the can-head, and serves as a support to thecan-body and head while the seam is being formed.

D and E are a pair of rockshafts arranged onopposite sides of themachine, to the ends of which rock-shaft the tool-holder or heads D andE are secured, so as to rock with the shafts. The rock-shafts D and Eare journaled upon adjustable sliding heads D and E mounted on the frameof the machine. By adjusting the slides D and E in or out, the

machine may be adapted to cans of different sizes.

D and E represent two stationary grooved cams secured rigidly to thesliding heads or blocks D and E by means of which cams the tool-arms dand e, mounted in radial grooves or ways on the heads D and E, arereciprocated radially in and out on said tool-holders or heads D and E,as they are rocked. The tool-arms d and c are each provided with pins orprojections d and e, which fit in these grooved cams. These pins orprojections should preferably be provided with small friction-rollers dand 6 The seaming-tool consists of a beveled-edge naled at right anglesto each other on the sliding tool-arm d. The space between these rollersis about equal to three thicknesses of the stock, and the firstoperation of the tool is to turn or fold the horizontal flange 0 of thehead, as shown in Fig. 7, down over the edge of the can-body, as shownin Fig. 8. The grooved cam D is provided with a short kink or turn atits upper portiomby which the reciprocating motion is given to thetool-arm to perform this operation. The circular central portion of thecam D then keeps the tool on the folded and partially-formed seam whilethe tool-arm rocks or swings down into the position shown in Figs. 9 and10, thus turning the seam down and forming a fold in the can-body, asshown in Fig. 10, while the flange of the can-head is folded over it.The tool G, consisting of a single smooth roller journaled on thetool-arm 6, serves to turn or bend the folded seam, as shown. in Fig.10, down flat against the wall of the can-body, as shown in Fig. 11.lVhen the operation begins,the toolsF, F, and G are in the positionshown in Figs. 1 or 7. During the first quarter-turn of the tool-arm d,or while it is swinging from the position shown in Fig. 7 to that shownin Fig. 9, the tool-arm 6 moves to the upper part of its cam, and then,while the tool F F is being swung into the position shown in Fig. 10,thetool G comes back to near its original position, as shown in Figs. 10 or7. The tool F F is then drawn back away from the can, as shown in Fig.11, by the curve near the lower part of the cam D while at the same timethe tool G is brought down against the seam, as shown in Fig. 10, and asthe tool-arm e continues to swing down it presses the seam fiat againstthe wall of the can, as shown in Fig. 11. The lower portion of the cam Eis eccentric from the upper half of said cam, so that while the tool-armis moving through the upperpart of the cam the tool G does not pressagainst the seam; but while the too1-arm is moving down through thelower part of the cam the tool G is pressed gradually against the seamand performs the operation of turning the seam down against the wall ofthe can-body. The cams D and E are both .secured by screws or bolts orother suitable means to their respective sliding heads D and E,

V which are mounted on suitable guides on the frame of the machine.These sliding heads are provided with adjusting-screws D and E, by whichthey may be adjusted to and from the can, as may be required, to adjustthe machine to cans of different sizes. The shaft D is rocked so as toswing the toolhead or holder D by means of the toothed quadrant-arm H,which meshes with the spur-gear h on the counter-shaft h, whichspur-gear meshes with atoothed arm, h on the rock-shaft D, and thepitman H is pivoted to said quadrant-arm H and connected to therevolving cam-wheel H on the shaft H The shaft E is rocked so as toswing the tool-holder or head E, secured thereto, up and down, from therock-shaft D by means of the toothed quadrantarm h connectingrod h,pivoted lever or rock-shaft it, and bar 7L5, which is connected to thearm h, secured rigidly to the rock-shaft E. The connecting-rod h issecured to the lever h by a setserew or other suitable means, so as toadjust the arm to different lengths, as may be required in operatingupon cans of different sizes, the lever H being pivoted upon theadjustable head block E and the toothed arm h being mounted upon thesliding head D As the tool-head D swings down to the horizontalposition, the crank-arm 7: passes the dead-point and moves therock-shaft h to the extreme of its throw, and as the head D continues toswing down the lever or rockshaft h is then turned in the opposite direction and the movement of the head E reversed, as before deseribedthat isto say, said head then begins to rock or swing down from the upper tothe lower part of the cam E The shaft H is journaled in suitablebearings, H", on the frame of the machine. Power is communicated to itby means of a belt, H from a small pulley, H, on the counter-shaftHwhich is provided with a spurgear, H that meshes with a spur-gear, H, onthe drivingshaft. The belt H operates abandwheel, K, on a counter-shaftjournaled in suitable bearings on the frame of the machine, and thiscounter-shaft is provided with a spurgear that meshes with a spur-gearK, fitting loosely on the shaft H The loose gear K is clutched to theshaft H by means of a clutch, K which engages with a correspond- IOO ingclutch-surface on the side of the gear K.

The clutch K is operated by a spring, K surrounding the shaft Hflwhichabuts against a collar, K*, secured to the shaft H in the ordinarymanner. The operation of the spring is to press the clutch K against theclutch surface of the gear when the horizontal pivoted arm K is raised,so that the pin K secured to the outside of the clutch-sleeve, does notstrike against said pivoted arm. The pivoted arm K is provided with acam-surface, K on its side, so that when said arm is dropped, so as torest upon the clutch-sleeve K it will operate to retract the clutch fromits engagement with the loose spur-gear K. The clutch-sleeve K issecured to the shaft H so as to revolve with it by means of a pin, K",which passes through said shaft and through a slot, K in saidclutch-sleeve. The pivoted arm K is raised,so as to permit the clutch toengage the gear, by means of a rod, 1 connected with a bent hand-lever,I which is pivoted to the frame of the machinein convenient reach of theattendant, so that by moving this lever he can operate the clutch whendesired. The shaft 1) is reciproeated vertically, so as to chuck the canfrom the cam-wheel H by means of the crankshaft L, provided with twoarms, land Z, the former of which has a roller which engages with thecam H and the latter of which is connected by a rod, Z with an arm, Z,on the crankshaft Z, which is provided with another arm,

Z, upon which said shaft brests or is supported. The lower end of theshaft 1) should be made conical or tapering, and the arm Z shouldbeprovided with a pivoted base-block, Z. The rod Z is secured in the endof the arm Z by means of a set-screw, so that said rod-connection may beadjusted as may be necessary to operate upon cans of different lengths.

M is a tube or chamber containing aspring, m, which presses against thelower end of the crank-arm Z, so as to press the arm Z always againstthe cam-surface H The machine is ordinarily provided with a treadle, N,connected with an arm, n, on the crank-shaft Z, so that the chuck-disk Bmay be operated by hand when desired by simply loosening the set-screwwhich connects the rod Z with the arm Z".

P is a friction-wheel provided with a frictionclamp, p, which will serveto steady the motion of themachine.

The tool-arm (Z is provided with a slot, f, in its end, in which slotthe bevel-roller F is mounted. The roller F is journaled on the end ofthe tool-arm, and should preferably be slightly conical in form. Thisroller, however, may be rigid or integral with the tool-arm d,- but thepreferable construction is to employ a 3O journaled roller, as beforedescribed. The

tool-arms (Z and e and the tools mounted thereon both have a compoundrocking and radially reciprocating motion, the rocking or swingingmotion being imparted to the toolarm by the rock-shafts, and thereciprocating motion being imparted to the tool-arms by the cams D andE". The disk B of the chuck operates in conjunction with the tools F, F,and G, and serves as a bearing or support for the tools to operateagainst. In the first step or operation, the rollerF serves to turn theflange 0 down over the can-body, and then the roller F, in connectionwith said roller F, serves to turn the fold thus formed down upon itselfand form the second fold of the seam. The pivoted block or step Z ismade hollow or provided with a recess, in which fits the rubber orelastic block Z and the metal plate Z, upon which a shaft, b, rests. Thepurpose of this elastic cushion Z is to permit the chuck to yieldslightly, and thus adjust itself to those slight variations in theheight of the can which sometimes unavoidably occur. This elasticcushion of the movable chu'ck or disk may, of course, be placed at someother point in the connecting or operating mechanism than the block Z.It may, for example, be on the end of the arm Z, upon which the cam Hoperates; but we deem the block Z, as shown, the most convenient place,and the cushion may consist of a spring or other elastic device insteadof the simple rubber block.

We claim 1. In a can-seaming machine, the combination of a seaming-tool,F F, mounted on a rocking and radially-reciprocating arm, (Z, with toolG, mounted on a rocking and radi- 'rockshaftD, adjustable sliding headD", and grooved cam D", for reciprocating said toolarm as thetool-holder D is rocked, substantially as specified.

3. The combination of compound seamingtool F F, sliding tool-arm d,tool-holder D,

rock-shaft D, adjustable sliding head D,

grooved cam D, rock-shaft E, seaming-tool G, sliding arm 0,tool-holdcr-E, adjustable sliding head E", grooved cam E, and arm h rodh, rock-shaft h", bar h, and arm h, for operating said rock-shaft E fromthe rockshaft D, substantially as specified.

4.. The combination of the revolving chuck for the can, with rock-shaftsE and D, toolholders secured to said rock-shafts, seamingtools journaled011 sliding arms mounted on said too1-holders, cams for actuating saidsliding arms, a cam and mechanism connecting said cam with rock-shaft E,to operate the same, and mechanism for actuating the movable disk of thechuck, substantially as specified.

5. The combination of the rocking toolholders E and D with mechanism foroperating the same, substantially as specified.

6. The combination of the rocking toolholders E and D with slidingtool-arms mounted 011 said holders, and cams for actuating said slidingarms, substantially as specified.

7. The combination, with the rock-shafts, tool-holders,and seaming-toolsmounted thereon, of the pitman-rod H, cam-wheel H, shaft H gear K,fitting loosely thereon, provided with a clutchsurface, clutch K,spring'K, and collar K2 secured to said shaft H and pivoted arm K,provided with cam-surface K and pin K secured to said clutch K,substantially as specified.

8. The combination of canchuck disk B and shaft Z), to which it issecured,with crankshaft L, provided with arms Z and Z, cam H, rod Z andcrank-shaft -Z*, provided with arms Z and Z, substantially as specified.

9. The combination, with the revolving chuck for the can, of thetool-holder secured to a rock shaft, and provided with radial grooves orguides, a sliding tool-arm mounted in said grooves or guides, and aseaming-tool adapted to fold the horizontal flange of the can-head overthe vertical wall of the can body and mounted on said tool-arm, and acam for operating said tool-arm as the tool-holder is rocked,substantially as specified.

10. The combination, with the revolving chuck for the can, the upperdisk, of said chuck fitting within the countersunk head of the can, soas to support the same, of the toolholder secured to a roclcshafttandprovided with radial grooves or guides, a sliding toolarm mounted insaid grooves or guides, anda seaming-tool adapted to fold the horizontalIIO flange of the can-head over the vertical wall of the can-body andmounted on said tool arm, and a cam for operating said tool-arm as thetool-holder is rocked, substantially as specified.

11. The combination of stationary revolving disk B, movable revolvingdisk B, shaft 1), crank-shaft L, provided with arms Z Z, cam H rod Zcrank-shaft 2*, provided with arms Z and Z and pivoted block Z providedwith rubber cushion Z and plate Z, substantially as specified.

12. The combination of the movable revolving disk B and its shaft 6, ofthe cam H and suitable connecting mechanism for operating I 5 saidshaft 1) from the cam 11, said connecting mechanism being provided withan elastic cushion to compensate for irregularities in the can-body,substantially as specified.

EDWIN NORTON. JOHN GEORGE HODGSON.

WVitnesses:

H. M. lVIUNDAY, EDMUND ADoocK.

